/**
 * 最总当前方法 [ parseTime, currentTime, formatTime, param2Obj ]
 */

/**
 * Parse the time to string
 * @param {(Object|string|number)} time
 * @param {string} cFormat
 * @returns {string | null}
 */
export function parseTime (time, cFormat) {
  if (arguments.length === 0) {
    return null
  }
  if (time == null || time === '') {
    return ''
  }
  const format = cFormat || '{y}-{m}-{d} {h}:{i}:{s}'
  let date
  if (typeof time === 'object') {
    date = time
  } else {
    if ((typeof time === 'string') && (/^[0-9]+$/.test(time))) {
      time = parseInt(time)
    }
    if ((typeof time === 'number') && (time.toString().length === 10)) {
      time = time * 1000
    }
    date = new Date(time)
  }
  const formatObj = {
    y: date.getFullYear(),
    m: date.getMonth() + 1,
    d: date.getDate(),
    h: date.getHours(),
    i: date.getMinutes(),
    s: date.getSeconds(),
    a: date.getDay()
  }
  const timeStr = format.replace(/{([ymdhisa])+}/g, (result, key) => {
    const value = formatObj[key]
    // Note: getDay() returns 0 on Sunday
    if (key === 'a') { return ['日', '一', '二', '三', '四', '五', '六'][value] }
    return value.toString().padStart(2, '0')
  })
  return timeStr
}

/**
 * @returns {string | null}
 */
export function currentTime () {
  return parseTime(new Date())
}

/**
 * @param {number} time
 * @param {string} option
 * @returns {string}
 */
export function formatTime (time, option) {
  if (('' + time).length === 10) {
    time = parseInt(time) * 1000
  } else {
    time = +time
  }
  const d = new Date(time)
  const now = Date.now()

  const diff = (now - d) / 1000

  if (diff < 30) {
    return '刚刚'
  } else if (diff < 3600) {
    // less 1 hour
    return Math.ceil(diff / 60) + '分钟前'
  } else if (diff < 3600 * 24) {
    return Math.ceil(diff / 3600) + '小时前'
  } else if (diff < 3600 * 24 * 2) {
    return '1天前'
  }
  if (option) {
    return parseTime(time, option)
  } else {
    return (
      d.getMonth() +
      1 +
      '月' +
      d.getDate() +
      '日' +
      d.getHours() +
      '时' +
      d.getMinutes() +
      '分'
    )
  }
}

/**
 * @param {string} url
 * @returns {Object}
 */
export function param2Obj (url) {
  const search = url.split('?')[1]
  if (!search) {
    return {}
  }
  return JSON.parse(
    '{"' +
      decodeURIComponent(search)
        .replace(/"/g, '\\"')
        .replace(/&/g, '","')
        .replace(/=/g, '":"')
        .replace(/\+/g, ' ') +
      '"}'
  )
}

export function getPartContent (content) {
  const num = 20
  if (content == null || content.length <= num) {
    return content
  }
  return content.substr(0, num) + '...'
}
export function currentDate () {
  var newdate = ''
  var aData = new Date()
  var month = aData.getMonth() < 9 ? '0' + (aData.getMonth() + 1) : aData.getMonth() + 1
  var date = aData.getDate() <= 9 ? '0' + aData.getDate() : aData.getDate()
  newdate = aData.getFullYear() + '-' + month + '-' + date
  return newdate
}
export function currentHour () {
  var newdate = ''
  var aData = new Date()
  var month = aData.getMonth() < 9 ? '0' + (aData.getMonth() + 1) : aData.getMonth() + 1
  var date = aData.getDate() <= 9 ? '0' + aData.getDate() : aData.getDate()
  var hour = aData.getHours() <= 9 ? '0' + aData.getHours() : aData.getHours()
  newdate = aData.getFullYear() + '-' + month + '-' + date + ' ' + hour
  return newdate
}
export function currentMonth () {
  var newdate = ''
  var aData = new Date()
  var month = aData.getMonth() < 9 ? '0' + (aData.getMonth() + 1) : aData.getMonth() + 1
  newdate = aData.getFullYear() + month
  return newdate
}
export function currentHMS () {
  var newdate = ''
  var aData = new Date()
  var hour = aData.getHours() <= 9 ? '0' + aData.getHours() : aData.getHours()
  var minutes = aData.getMinutes() <= 9 ? '0' + aData.getMinutes() : aData.getMinutes()
  var seconds = aData.getSeconds() <= 9 ? '0' + aData.getSeconds() : aData.getSeconds()

  newdate = hour + ':' + minutes + ':' + seconds
  return newdate
}
